Example 2:

No

Explanation :

Example 3:

Yes

Explanation :

`4` ___
` 4 ) 16`
`- 16`
_____
`0`

Since the remainder is 0, therefore 4 is a factor of 16.

Factor Tree

A factor tree is a diagram to find the factors of a number. In this process, we first find the two numbers whose multiplication will gives us
the given number (so for a given number 12 - we get 2 other number - 3 and 4 whose multiplication will give 12)

Now in next step, we use above approach to get the factors of 3 and 4 and write them in tree diagram and will repeat the process of factoring until no factor of any of these two number are possible.